#45317F
Closest named color: Dark Slate Blue (#483D8B). oklch(38.1% 0.126 291), rgb(69, 49, 127).
Aa
White text reads best on this color (10.50:1).
About this color
#45317F is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.126 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.036 away. White text reads best on it, at 10.50:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.99:1 |
| White text | 10.50:1 |
Values
| HEX | #45317F |
| RGB | rgb(69, 49, 127) |
| HSL | hsl(255, 44%, 35%) |
| OKLCH | oklch(38.1% 0.126 291) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #45317F | 10.50:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #45317F | 1.99:1 | Fails | Lc 9.9 | Not readable |
| #45317F text on white | 10.50:1 | AAA | Lc 94.0 | Preferred for body text |
| #45317F text on black | 1.99:1 | Fails | Lc -8.5 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FB
oklch(93.5% 0.027 290.5)
-
Step 200
200
#D9D4FA
oklch(88.6% 0.052 291.3)
-
Step 300
300
#C0B6FA
oklch(80.9% 0.095 290.8)
-
Step 400
400
#A28DF7
oklch(70.7% 0.152 291.1)
-
Step 500
500
#8D6DF3
oklch(63.1% 0.193 290.8)
-
Step 600
600
#7950E2
oklch(55.7% 0.21 290.9)
-
Step 700
700
#663FC4
oklch(49.1% 0.195 290.9)
-
Step 800
800
#53359F
oklch(42.7% 0.163 290.9)
-
Step 900
900 (this color)
#45317F
oklch(38.1% 0.126 291)
-
Step 950
950
#281D4A
oklch(27.1% 0.08 291.4)
#45317F with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #004082 | 0.077 |
| Deuteranopia (no green cones) | #003D7D | 0.077 |
| Tritanopia (no blue cones) | #344253 | 0.101 |
| Achromatopsia (no color) | #3F3F3F | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45317F
#45317F
oklch(38.1% 0.126 291)
- #454600
#454600
oklch(38.1% 0.083 110.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #45317F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.036
- Blueberry #464196 ΔE 0.053
- Indigo #4B0082 ΔE 0.073
- Cobalt #1E488F ΔE 0.075
- Rebecca Purple #663399 ΔE 0.075
- Twilight Blue #0A437A ΔE 0.079
- Imperial Purple #480CA8 ΔE 0.084
- Royal Purple #4B006E ΔE 0.085
Use #45317F in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.